DAMPING DEVICE AND WIND TURBINE GENERATOR SYSTEM

Description

[0001] This application claims the priority to Chinese Patent Application No. 202010240404.3, titled "DAMPING DEVICE AND WIND TURBINE GENERATOR SYSTEM", filed with the China National Intellectual Property Administration on March 31, 2020.

FIELD

[0002] The present application relates to the technical field of wind power generation, and in particular to a damping device capable of reducing installation space and improving the reliability of a wind turbine generator system and a wind turbine generator system including the damping device.

BACKGROUND

[0003] As the height of the tower becomes higher and higher, which is a main support structure of a wind turbine generator system, the control requirements for the first-order vibration become more and more urgent. At present, tuned mass dampers are mainly used to control the vibration of towers (especially flexible towers). Generally, when the tower is subjected to an external dynamic force, the tuned mass damper provides the force (damping force) opposite to a vibration direction of the tower through a mass block with the same vibration frequency of the tower, so as to counteract the structural response caused by external excitation. The damper that provides damping force usually includes viscous damper, liquid damper and eddy current damper.

[0004] In order to ensure the conversion efficiency of the existing single pendulum tuned mass damper, numerous mechanisms and components are usually provided to absorb the motion potential energy in different swing directions. One such prior art mechanism is disclosed in WO 2019/201471.

[0005] Therefore, there is an urgent need for a damping device that can reduce the required space within the effective space of the tower and avoid the risk of interference.

SUMMARY

[0006] In order to solve the above technical problems, a damping device and a wind turbine generator system is provided according to the present application, where the damping device can reduce the required space in the effective space of the tower and avoid the risk of interference.

[0007] According to an aspect of the present application, a damping device is provided, which includes a damping member; a structural bracket, where the structural bracket connects the damping member to a mass block arranged on an object to be damped, where the structural bracket includes gears, and the gears are rotatably arranged on the structural bracket; a guide rail having a predetermined curvature, a first end of the guide rail is configured to be rotatably connected to the object to be damped, and a second end of the guide rail is supported on the structural bracket, a side portion of the guide rail is formed with a tooth portion that meshes with the gear of the structural bracket, when the mass block swings, the swing of the mass block is converted into rotation through meshing transmission between the guide rail and the gear, and the rotation is transmitted to the damping member.

[0008] According to another aspect of the present application, a wind turbine generator system is provided, including: a tower as the object to be damped; the above damping device, the structural bracket is connected to the mass block provided in the tower, and the first end of the guide rail is rotatably connected to an inner wall of the tower.

[0009] The damping device according to the present application can provide damping force for the entire wind turbine generator system while ensuring that high conversion efficiency can be obtained in all directions; the maintenance work items can be reduced and the overall reliability can be improved; the number of parts of the damping device can be reduced, the structure can be simplified, and the production cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and other features and advantages of the present application becomes more apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings, in the drawings:

FIG. 1 is a schematic diagram of a damping device applied to a wind turbine generator system according to an exemplary embodiment of the present application;

FIG. 2 is a schematic diagram illustrating a partial cross-sectional view of the damping device taken along line A-A in FIG. 1 according to an exemplary embodiment of the present application;

FIG. 3 is an enlarged schematic view showing a gear shaft of the structural bracket shown in FIG. 2;

FIG. 4 is a schematic diagram illustrating a guide rail of a damping device according to an exemplary embodiment of the present application;

FIG. 5 is a schematic diagram illustrating a guide roller in a guide structure of a damping device according to an exemplary embodiment of the present application;

FIG. 6 is an enlarged schematic view showing the damping member shown in FIG. 2;

FIG. 7 and FIG. 8 are diagrams schematically showing the motion state of the damping device when the swing direction of the mass block is parallel to the line connecting the fixed points of the first ends of the two guide rails;

FIG. 9 and FIG. 10 are diagrams schematically showing the motion state of the damping device when the swing direction of the mass block is perpendicular to the line connecting the fixed points of the first ends of the two guide rails.

[0011] 

Reference numerals in the drawings:

1	damping member;	2	structural bracket;
3	guide rail;	4	guide groove;
5	guide wheel;	6	idler roller;
7	object to be damped;	8	mass block;
9	gear shaft;	10	first bearing;
11	second bearing;	12	connecting disk;
13	coupling;	14	rotor;
15	stator;	16	ladder;
17	elevator;	18	pendulum rod.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] Embodiments of the present application are described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present application are shown.

[0013] According to an exemplary embodiment of the present application, it provides a damping device, which is capable of avoiding the risk of interference in an effective space while ensuring a reliable space for maintenance work. As an example, the damping device can be applied to a tuned mass damper of a simple pendulum, so as to provide damping force for the object to be damped 7, and achieve the damping effect. For example, in the following exemplary embodiments, an example of the application of the damping device in a wind turbine generator system is described, which is only taken as an example. The damping device according to the exemplary embodiment of the present application can also be applied to other devices or objects to be damped to provide damping force.

[0014] The damping device according to the exemplary embodiment of the present application is described in detail below with reference to the accompanying drawings. In the drawings, in order to clearly illustrate the structure of the damping device, only a part of the object to be damped 7, such as a tower, is schematically shown in the form of a circular ring.

[0015] Referring to FIG. 1 to FIG. 3, a damping device according to an exemplary embodiment of the present application includes: a damping member 1; a structural bracket 2, which connects the damping member 1 to a mass block 8 arranged on the object to be damped 7, where the structural bracket 2 includes gears rotatably arranged thereon; and a guide rail 3 having a predetermined curvature, a first end of the guide rail 3 is configured to be rotatably connected to the object to be damped 7, and a second end of the guide rail 3 is supported on the structural bracket 2. A side portion of the guide rail 3 is formed with a tooth portion that meshes with the gear. When the mass block 8 swings, the swing of the mass block 8 is converted into rotation through meshing transmission between the guide rail 3 and the gear, and the rotation is transmitted to the damping member 1. The damping member 1 provides damping force to achieve vibration reduction. Here, the structural bracket 2 and the guide rail 3 can constitute a damping conversion mechanism for converting the swing of the mass block 8 into rotation transmitted to the damping member 1.

[0016] The first end of the guide rail 3 in its length direction is configured to be rotatably connected to the object to be damped 7. For example, the first end of the guide rail 3 can be fixedly connected to the object to be damped 7 by using a knuckle bearing. The knuckle bearing can not only ensure the swing of the guide rail 3 in the horizontal direction, but also ensure the swing of the guide rail 3 in the vertical direction caused by the swing of the mass block 8. Moreover, the knuckle bearing can also bear a large load. However, the embodiment of the present application is not limited to this, and other connectors may also be used instead of the knuckle bearings to realize the rotatable connection of the first end of the guide rail 3 to the object to be damped 7. According to an embodiment of the present application, the guide rail 3 can be formed by a rack having a predetermined curvature, but is not limited thereto. The guide rail 3 can be formed by other components with a predetermined curvature and teeth on the side meshed with the gears in the structural bracket 2.

[0017] Referring to FIG. 3, as an example, the gears included in the structural bracket 2 may be in the form of gear shafts 9. However, the embodiments of the present application are not limited thereto, and the gears may also in other forms as long as they can mesh with the teeth of the guide rail 3. For example, other toothed components such as worm gear can be used to form the gears in the structural bracket 2. The gear shaft 9 is rotatably mounted in the structural bracket 2 by bearings. The gear shaft 9 can be mounted in the structural bracket 2 through the first bearing 10 and the second bearing 11 at both ends, and the gear shaft 9 itself can rotate around its rotation axis. The gear shaft 9 can be connected to the damping member 1 by a coupling 13 at the shaft end. When the mass block 8 swings with the vibration of the object to be damped 7, the gear of the gear shaft 9 rotates around the shaft by meshing with the teeth of the guide rail 3 with a predetermined curvature, and the rotation is transmitted to the connected damping member 1 through the coupling 13 at the shaft end. The damping force provided by the damping member 1 damps the amplitude of the swing, thereby realizing vibration damping.

[0018] The structural bracket 2 can further include a connecting disk 12 with connecting flanges (described in detail below). Moreover, the connecting disk 12 can have a hollow accommodation space, and the coupling 13 can be accommodated in the accommodation space of the connecting disk 12. In this way, it can not only protect the coupling 13, but also facilitates the installation and removal of the damping member 1.

[0019] In order to realize the supporting and guiding functions, guide structures can also be formed on the structural bracket 2 and the guide rail 3, which match with each other. Referring to FIG. 4 to FIG. 5, the guide structure according to the exemplary embodiment of the present application may include a guide groove 4 and a guide roller 5. The guide grooves 4 are formed in the first and second surfaces of the guide rail 3, which are opposed to each other in the thickness direction. The guide roller 5 is rotatably arranged at a position of the structural bracket 2, where the position faces the guide groove of the guide rail 3 and is accommodated in the guide groove 4.

[0020] The guide groove 4 can be recessed from the first surface or the second surface of the guide rail 3 in the thickness direction, and the guide groove 4 extends along the length direction of the guide rail 3 to provide a sufficient stroke. The rotation axis of the guide roller 5 is parallel to the side wall of the guide groove 4, so that the guide roller 5 can be adjacent to the side wall of the guide groove 4 and move along the guide groove 4 with the swing of the mass block 8. In this way, the structural bracket 2 moves along the trajectory determined by the guide rails 3. With the above-mentioned guide structure, the structural bracket 2 moves along the track determined by the guide rail 3, so as to transmit the swing motion of the mass block 8 to the rotating motion of the gear meshed with the teeth of the guide rail 3, and the rotating motion is transmitted to the damping member 1.

[0021] According to the exemplary embodiment of the present application, in order to better support the weight of the guide rail 3, besides that the guide roller 5 itself is rotatable, the guide roller 5 further includes an idler roller 6 rotatably disposed at the end. The idler roller 6 contacts a groove bottom surface of the guide groove 4, and a rotation axis of the idler roller 6 is parallel to the groove bottom surface. In this way, the guide structure can not only play a guiding role, but also play a role of supporting the guide rail 3 in a follow-up manner. In addition, the guide structure can maintain the working backlash between the guide rail 3 and the gears of the structural bracket 2 no matter in the static or moving state, thereby reducing gear wear, prolonging gear life, and improving motion transmission accuracy.

[0022] In order to prolong the life of the guide roller 5, an eccentric mounting sleeve can also be provided to mount the guide roller 5 on the structural bracket 2. In this way, even after the guide roller 5 is worn for a long time, the centering work can be performed by the eccentric mounting sleeve.

[0023] According to the exemplary embodiment of the present application, the damping member 1 can use the eddy current principle to consume the excitation of the vibration of the object to be damped 7, thereby providing damping force. Referring to FIG. 6, the damping member 1 can include a rotor 14 and a stator 15. The gear shaft 9 can be connected to the rotor 14 of the damping member 1 through a coupling 13. According to the exemplary embodiment of the present application, in the damping member 1, the rotor 14 is located inside the stator 15. In addition, the rotor 14 is connected to the shaft end of the gear shaft 9 through the coupling 13, so that the rotor 14 can rotate with the rotation of the gear shaft 9. Referring to FIG. 3 and FIG. 6, both ends of the connecting disk 12 can be provided with connecting flanges, so that one end of the connecting disk 12 can be detachably connected to the structural bracket 2 through the connecting flanges and connecting pieces such as bolts. The other end of the connecting disk 12 can be detachably connected to the stator 15 of the damping member 1 through a connecting flange and a connecting piece such as a bolt. When the gear in the structural bracket 2 converts the swing motion of the mass block 8 into the rotating motion, and transmits the rotating motion to the rotor 14 of the damping part 1 through the coupling 13, the magnetic steel on the rotor 14 can produce eddy current damping that restrains the relative movement of the mass block 8 on the conductor copper plate on the stator 15 of the damping member 1. Through eddy current damping, the vibration energy is dissipated through the resistance thermal effect of the conductor to achieve the vibration reduction effect.

[0024] According to an exemplary embodiment of the present application, a wind turbine generator system is provided, which includes a tower as the object to be damped 7 and the damping device as described above. The first end of the structural bracket 2 is connected to the mass block 8 provided in the tower, and the first end of the guide rail 3 is rotatably connected to the inner wall of the tower. Specifically, referring to FIG. 1 and FIG. 2, the structural bracket 2 can be connected to the lower surface of the mass block 8 by connecting pieces such as bolts, and the first end of the guide rail 3 can be connected to the inner wall of the tower by connecting pieces such as knuckle bearing.

[0025] In order to be able to provide sufficient damping force, the wind turbine generator system may include two of the above-mentioned damping devices. Considering that there are ladders 16, elevators 17 and other devices in the tower, and the mass block 8 of the single pendulum tuned mass damper is vertically arranged in the tower through the pendulum rod 18, the space for mounting the damping device is limited. In this case, in order to avoid interference in an effective space and ensure a reliable space for maintenance work, the two guide rails 3 of the two damping devices can be arranged to be staggered from each other by a predetermined distance in the height direction of the tower. Here, the structural bracket 2 can be set to be adjustable in height, so that it facilitates an adjustment to the positions of the two guide rails 3 to be staggered from each other in the height direction. According to an example, the structural bracket 2 can be made in sections, or can have a retractable structure, so that the positions of the two guide rails 3 can be flexibly adjusted according to the size of the installation space, thereby improving the operability.

[0026] In addition, in order to ensure high conversion efficiency in all directions, the two guide rails 3 of the two damping devices can be arranged to be opposite to each other. Here, the two guide rails 3 facing away from each other means that the bending directions of the two guide rails 3 are opposite. Referring to the following FIG. 7 to FIG. 10, the signs of curvature radii of the two guide rails 3 are opposite. For example, viewed from above the damping device, the two guide rails 3 of the two damping devices are in a general "

" shape (refer to FIGS. 7, 8 and 10) or an approximate "X" shape (refer to FIG. 9) in a specific state (for example, in an initial static state or a specific motion state).

[0027] Here, the absolute values of the curvature radii of the two guide rails 3 may be the same or different, and the curvature radii of the two guide rails 3 may be properly set according to the installation space for the damping device. According to an exemplary embodiment of the present application, the absolute values of the curvature radii of the two guide rails 3 may be set to be the same.

[0028] The advantages of the damping device applied in the wind turbine generator system according to the exemplary embodiment of the present application are described below with reference to FIG. 7 to FIG. 10. FIG. 7 and FIG. 8 show the motion state of the damping device when the swing direction of the mass block 8 is parallel to the line connecting the fixed points of the first ends of the two guide rails 3. The arrows in FIG. 7 and FIG. 8 respectively indicate the swing directions D1 and D2 of the mass block 8. FIG. 9 and FIG. 10 show the motion state of the damping device when the swing direction of the mass block 8 is perpendicular to the line connecting the fixed points of the first ends of the two guide rails 3. The arrows in FIG. 9 and FIG. 10 respectively indicate the swing directions D3 and D4 of the mass block 8. In FIG. 7 to FIG. 10, in order to clearly show the motion state of the damping device, the mass block 8 is shown with a double-dot line. It can be seen from the motion states shown in FIG. 7 to FIG. 10 that the damping device with the guide rail 3 with a predetermined curvature has the following advantages: in case of being with equal engagement length, the turning radius of the guide rail 3 with a predetermined curvature is smaller, and the required installation space is also smaller; the two guide rails 3 are arranged staggered from each other in the height direction, which further reduces the space requirement; when the swing direction of the mass block 8 is perpendicular to a connecting line between the fixed points of the first ends of the two guide rails 3, the guide rail 3 with curvature can well convert the swing into the rotation of the gear in the structural bracket 2, and then transmit it to the damping member 1. In addition, it only needs two damping devices to provide damping force for the entire wind turbine generator system, and high conversion efficiency can be obtained in all directions.

[0029] The damping device according to the present application can provide damping force for the entire wind turbine generator system while ensuring that high conversion efficiency can be obtained in all directions; the required installation space is small, the interference is avoided in the effective space, and the reliable space for maintenance work is guaranteed; the gear wear can be reduced, the gear life can be prolonged, and the motion transmission accuracy can be improved; the maintenance work items can be reduced and the overall reliability can be improved; the number of parts of the damping device can be reduced, the structure can be simplified, and the production cost can be reduced.

[0030] Although the present application has been particularly shown and described with reference to the exemplary embodiments thereof, it should be understood by those skilled in the art that various changes in form and details can be made without departing from the scope of the present application defined by the claims.

INDUSTRIAL APPLICABILITY

[0031] The damping device and the wind turbine generator system according to the exemplary embodiment of the present application can provide damping force for the whole wind turbine generator system, realize vibration reduction, reduce installation space, and ensure reliable space for maintenance work.

Claims

1. A damping device for a wind turbine tower, comprising:

a damping member (1);

a structural bracket (2), wherein the structural bracket (2) connects the damping member (1) to a mass block (8) arranged on an object to be damped (7), wherein the structural bracket (2) comprises a gear, and the gear is rotatably arranged on the structural bracket (2);

a guide rail (3) having a predetermined curvature, wherein a first end of the guide rail (3) is configured to be rotatably connected to the object to be damped (7), and a second end of the guide rail (3) is supported on the structural bracket (2), wherein a side portion of the guide rail (3) is formed with a tooth portion that meshes with the gear,

wherein, when the mass block (8) swings, the swing of the mass block (8) is converted into rotation through meshing transmission between the guide rail (3) and the gear, and the rotation is transmitted to the damping member (1).

2. The damping device according to claim 1, wherein guide structures, which are matched with each other, are formed on the structural bracket (2) and the guide rail (3), respectively.

3. The damping device according to claim 2, wherein the guide structure comprises:

a guide groove (4), wherein the guide grooves (4) are formed in the first and second surfaces of the guide rail (3), which are opposed to each other in the thickness direction;

a guide roller (5), wherein the guide roller (5) is rotatably arranged at the position of the structural bracket (2) facing the guide groove (4) of the guide rail (3), and is accommodated in the guide groove (4).

4. The damping device according to claim 3, wherein the guide groove (4) is recessed from the first surface or the second surface of the guide rail (3) along the thickness direction, and the guide groove (4) extends along a length direction of the guide rail (3); wherein a rotation axis of the guide roller (5) is parallel to a side wall of the guide groove (4).

5. The damping device according to claim 3, wherein the guide roller (5) comprises an idler roller (6) rotatably arranged at an end thereof, wherein the idler roller (6) contacts a groove bottom surface of the guide groove (4), and a rotation axis of the idler roller (6) is parallel to the groove bottom surface.

6. The damping device according to claim 3, wherein the guide roller (5) is mounted on the structural bracket (2) by means of an eccentric mounting sleeve.

7. The damping device according to claim 1, wherein the gear is configured as a gear shaft (9), which is rotatably mounted in the structural bracket (2) through a bearing, wherein the damping member (1) comprises a rotor (14) and a stator (15), and the rotor (14) is connected to the gear shaft (9) through a coupling (13).

8. The damping device according to claim 7, wherein the rotor (14) is located inside the stator (15), and the rotor (14) is connected to a shaft end of the gear shaft (9) through the coupling (13).

9. The damping device according to claim 7 or 8, wherein the structural bracket (2) further comprises a connecting disk (12), wherein the connecting disk (12) has a hollow accommodating space, and the coupling (13) is accommodated in the accommodating space of the connecting disk (12).

10. The damping device according to claim 9, wherein both ends of the connecting disk (12) are provided with connecting flanges and are respectively mounted to the structural bracket (2) and the stator (15).

11. The damping device according to claim 1, wherein the guide rail (3) is a rack with a predetermined radius of curvature.

12. A wind turbine generator system, comprising

a tower as an object to be damped (7);

the damping device according to any one of claims 1 to 11, wherein the structural bracket (2) is connected to the mass block (8) provided in the tower, and the first end of the guide rail (3) is rotatably connected to an inner wall of the tower.

13. The wind turbine generator system according to claim 12, further comprising two damping devices, wherein the two guide rails (3) of the two damping devices are offset from each other by a predetermined distance in a height direction of the tower.

14. The wind turbine generator system according to claim 13, wherein the height of the structural bracket (2) is adjustable, or
the structural bracket (2) is made by sections, or the structural bracket (2) has a retractable structure.

15. The wind turbine generator system according to claim 13, wherein the two guide rails (3) of the two damping devices are arranged facing away from each other, or

the signs of the curvature radii of the two guide rails (3) of the two damping devices are opposite, or

the absolute values of the curvature radii of the two guide rails (3) of the two damping devices are the same, or

the absolute values of the curvature radii of the two guide rails (3) of the two damping devices are different.

Ansprüche

1. Dämpfungsvorrichtung für einen Windturbinenturm, umfassend:

ein Dämpfungselement (1);

eine strukturelle Halterung (2), wobei die strukturelle Halterung (2) das Dämpfungselement (1) mit einem Massenblock (8) verbindet, der an einem zu dämpfenden Objekt (7) angeordnet ist, wobei die strukturelle Halterung (2) ein Zahnrad umfasst und das Zahnrad drehbar an der strukturellen Halterung (2) angeordnet ist;

eine Führungsschiene (3) mit einer vorbestimmten Krümmung, wobei ein erstes Ende der Führungsschiene (3) dazu ausgestaltet ist, drehbar mit dem zu dämpfenden Objekt (7) verbunden zu sein, und ein zweites Ende der Führungsschiene (3) an der strukturellen Halterung (2) abgestützt ist, wobei ein Seitenabschnitt der Führungsschiene (3) mit einem Zahnabschnitt ausgebildet ist, der mit dem Zahnrad in Eingriff steht,

wobei, wenn der Massenblock (8) schwingt, das Schwingen des Massenblocks (8) durch Eingriffsübertragung zwischen der Führungsschiene (3) und dem Zahnrad in eine Drehung umgewandelt wird und die Drehung auf das Dämpfungselement (1) übertragen wird.

2. Dämpfungsvorrichtung nach Anspruch 1, wobei Führungsstrukturen, die aufeinander abgestimmt sind, an der strukturellen Halterung (2) und der Führungsschiene (3) ausgebildet sind.

3. Dämpfungsvorrichtung nach Anspruch 2, wobei die Führungsstruktur umfasst:

eine Führungsnut (4), wobei die Führungsnuten (4) in der ersten und zweiten Oberfläche der Führungsschiene (3) ausgebildet sind, die sich in Dickenrichtung einander gegenüberliegen;

eine Führungsrolle (5), wobei die Führungsrolle (5) drehbar an der Position der strukturellen Halterung (2) angeordnet ist, die der Führungsnut (4) der Führungsschiene (3) gegenüberliegt, und in der Führungsnut (4) untergebracht ist.

4. Dämpfungsvorrichtung nach Anspruch 3, wobei die Führungsnut (4) von der ersten Oberfläche oder der zweiten Oberfläche der Führungsschiene (3) entlang der Dickenrichtung zurückgesetzt ist und sich die Führungsnut (4) entlang einer Längsrichtung der Führungsschiene (3) erstreckt; wobei eine Drehachse der Führungsrolle (5) parallel zu einer Seitenwand der Führungsnut (4) ist.

5. Dämpfungsvorrichtung nach Anspruch 3, wobei die Führungsrolle (5) eine an einem ihrer Enden drehbar angeordnete Mitläuferrolle (6) umfasst, wobei die Mitläuferrolle (6) eine Nutgrundfläche der Führungsnut (4) berührt und eine Drehachse der Mitläuferrolle (6) parallel zur Nutgrundfläche verläuft.

6. Dämpfungsvorrichtung nach Anspruch 3, wobei die Führungsrolle (5) mittels einer exzentrischen Montagehülse an der strukturellen Halterung (2) befestigt ist.

7. Dämpfungsvorrichtung nach Anspruch 1, wobei das Zahnrad als Zahnradwelle (9) ausgebildet ist, die über ein Lager drehbar in der strukturellen Halterung (2) gelagert ist, wobei das Dämpfungselement (1) einen Rotor (14) und einen Stator (15) aufweist und der Rotor (14) mit der Zahnradwelle (9) über eine Kupplung (13) verbunden ist.

8. Dämpfungsvorrichtung nach Anspruch 7, wobei der Rotor (14) im Inneren des Stators (15) angeordnet ist und der Rotor (14) über die Kupplung (13) mit einem Wellenende der Zahnradwelle (9) verbunden ist.

9. Dämpfungsvorrichtung nach Anspruch 7 oder 8, wobei die strukturelle Halterung (2) ferner eine Verbindungsscheibe (12) umfasst, wobei die Verbindungsscheibe (12) einen hohlen Aufnahmeraum aufweist und die Kupplung (13) in dem Aufnahmeraum der Verbindungsscheibe (12) aufgenommen ist.

10. Dämpfungsvorrichtung nach Anspruch 9, wobei beide Enden der Verbindungsscheibe (12) mit Verbindungsflanschen versehen sind und jeweils an der strukturellen Halterung (2) und dem Stator (15) befestigt sind.

11. Dämpfungsvorrichtung nach Anspruch 1, wobei die Führungsschiene (3) eine Zahnstange mit einem vorbestimmten Krümmungsradius ist.

12. Windturbinengeneratorsystem umfassend:

einen Turm als zu dämpfendes Objekt (7);

die Dämpfungsvorrichtung nach einem der Ansprüche 1 bis 11, wobei die strukturelle Halterung (2) mit dem in dem Turm vorgesehenen Massenblock (8) verbunden ist und das erste Ende der Führungsschiene (3) drehbar mit einer Innenwand des Turms verbunden ist.

13. Windturbinengeneratorsystem nach Anspruch 12, das ferner zwei Dämpfungsvorrichtungen umfasst, wobei die zwei Führungsschienen (3) der zwei Dämpfungsvorrichtungen um einen vorbestimmten Abstand in einer Höhenrichtung des Turms zueinander versetzt sind.

14. Windturbinengeneratorsystem nach Anspruch 13, wobei die Höhe der strukturellen Halterung (2) einstellbar ist, oder die strukturelle Halterung (2) aus Abschnitten besteht, oder die strukturelle Halterung (2) eine einziehbare Struktur aufweist.

15. Windturbinengeneratorsystem nach Anspruch 13, wobei die zwei Führungsschienen (3) der zwei Dämpfungsvorrichtungen einander abgewandt angeordnet sind, oder

die Vorzeichen der Krümmungsradien der zwei Führungsschienen (3) der zwei Dämpfungsvorrichtungen entgegengesetzt sind, oder

die Absolutwerte der Krümmungsradien der zwei Führungsschienen (3) der zwei Dämpfungsvorrichtungen gleich sind, oder

die Absolutwerte der Krümmungsradien der zwei Führungsschienen (3) der zwei Dämpfungsvorrichtungen unterschiedlich sind.

Revendications

1. Dispositif d'amortissement pour une tour éolienne, comprenant :

un élément d'amortissement (1) ;

un support structural (2), le support structural (2) raccordant l'élément d'amortissement (1) à un bloc de masse (8) agencé sur un objet à amortir (7), le support structural (2) comprenant un élément denté et l'élément denté étant agencé de manière rotative sur le support structural (2) ;

un rail de guidage (3) présentant une courbure prédéfinie, une première extrémité du rail de guidage (3) étant conçue pour être raccordée de manière rotative à l'objet à amortir (7), et une seconde extrémité du rail de guidage (3) étant supportée sur le support structural (2), une partie latérale du rail de guidage (3) étant formée avec une partie dentée qui s'engrène avec l'élément denté,

dans lequel, quand le bloc de masse (8) oscille, l'oscillation du bloc de masse (8) est convertie en rotation par la transmission par engrènement entre le rail de guidage (3) et l'élément denté et la rotation est transmise à l'élément d'amortissement (1).

2. Dispositif d'amortissement selon la revendication 1, dans lequel des structures de guidage, qui correspondent les unes aux autres, sont formées respectivement sur le support structural (2) et le rail de guidage (3).

3. Dispositif d'amortissement selon la revendication 2, dans lequel la structure de guidage comprend :

une rainure de guidage (4), les rainures de guidage (4) étant formées dans la première et la seconde surface du rail de guidage (3) qui sont opposées l'une à l'autre dans la direction de l' épaisseur ;

un galet de guidage (5), le galet de guidage (5) étant agencé de manière rotative dans la position dans laquelle le support structural (2) fait face à la rainure de guidage (4) du rail de guidage (3) et étant reçu dans la rainure de guidage (4).

4. Dispositif d'amortissement selon la revendication 3, dans lequel la rainure de guidage (4) est évidée depuis la première surface ou la seconde surface du rail de guidage (3) dans la direction de l'épaisseur, et la rainure de guidage (4) s'étend dans la direction de la longueur du rail de guidage (3) ; un axe de rotation du galet de guidage (5) étant parallèle à une paroi latérale de la rainure de guidage (4).

5. Dispositif d'amortissement selon la revendication 3, dans lequel le galet de guidage (5) comprend un galet libre (6) agencé de manière rotative sur une extrémité de celuici, le galet libre (6) étant en contact avec une surface de fond de rainure de la rainure de guidage (4), et un axe de rotation du galet libre (6) étant parallèle à la surface de fond de rainure.

6. Dispositif d'amortissement selon la revendication 3, dans lequel le galet de guidage (5) est monté sur le support structural (2) au moyen d'une douille de montage excentrique.

7. Dispositif d'amortissement selon la revendication 1, dans lequel l'élément denté est conçu sous la forme d'un arbre de transmission (9) qui est monté de manière rotative dans le support structural (2) par le biais d'un palier, l'élément d'amortissement (1) comprenant un rotor (14) et un stator (15) et le rotor (14) étant raccordé à l'arbre de transmission (9) par le biais d'un accouplement (13).

8. Dispositif d' amortissement selon la revendication 7, dans lequel le rotor (14) est situé à l'intérieur du stator (15) et le rotor (14) est raccordé à une extrémité d'arbre de l'arbre de transmission (9) par le biais de l'accouplement (13).

9. Dispositif d'amortissement selon la revendication 7 ou 8, dans lequel le support structural (2) comprend en outre un disque de raccordement (12), le disque de raccordement (12) présentant un espace de réception creux et l'accouplement (13) étant reçu dans l'espace de réception du disque de raccordement (12).

10. Dispositif d'amortissement selon la revendication 9, dans lequel les deux extrémités du disque de raccordement (12) sont pourvues de brides de raccordement et sont montées respectivement sur le support structural (2) et le stator (15).

11. Dispositif d'amortissement selon la revendication 1, dans lequel le rail de guidage (3) est une crémaillère avec un rayon de courbure prédéfini.

12. Système de générateur éolien, comprenant

une tour en tant qu'objet à amortir (7) ;

le dispositif d'amortissement selon une des revendications 1 à 11, le support structural (2) étant raccordé au bloc de masse (8) situé dans la tour et la première extrémité du rail de guidage (3) étant raccordée de manière rotative à une paroi intérieure de la tour.

13. Système de générateur éolien selon la revendication 12, comprenant en outre deux dispositifs d'amortissement, les deux rails de guidage (3) des deux dispositifs d'amortissement étant décalés l'un par rapport à l'autre à une distance prédéfinie dans la direction de la hauteur de la tour.

14. Système de générateur éolien selon la revendication 13, dans lequel la hauteur du support structural (2) est réglable ou
le support structural (2) est constitué de sections ou le support structural (2) présente une structure rétractable.

15. Système de générateur éolien selon la revendication 13, dans lequel les deux rails de guidage (3) des deux dispositifs d'amortissement sont agencés de manière orientée à l'opposé l'un par rapport à l'autre ou

les signes des rayons de courbure des deux rails de guidage (3) des deux dispositifs d'amortissement sont opposés ou

les valeurs absolues des rayons de courbure des deux rails de guidage (3) des deux dispositifs d'amortissement sont identiques ou

les valeurs absolues des rayons de courbure des deux rails de guidage (3) des deux dispositifs d'amortissement sont différentes.

Drawing